/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package it.unitn.science.matr155863_148346_145963.bccastestore.servlet;

import it.unitn.science.matr155863_148346_145963.bccastestore.DBManager;
import it.unitn.science.matr155863_148346_145963.bccastestore.items.Product;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.UnavailableException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log4j.Logger;

/**
 *
 * @author Luca
 */

public class SearchProductSRV extends HttpServlet {

    private DBManager db;
    private static Logger log = Logger.getLogger(SearchProductSRV.class);
    
    
    @Override
    public void init(ServletConfig config) throws UnavailableException, ServletException{
        super.init(config);
        db=(DBManager)super.getServletContext().getAttribute("db_manager");
        
    }
    
    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
      
        String address="/contents/public/errorPage.jsp";
        try {
            String categoryStr=request.getParameter("category");
            Integer category=null;
            if((categoryStr!=null)&&(!categoryStr.equals(""))){
                try{
                  category=Integer.parseInt(categoryStr);
                }catch(Exception ex){
                    //out.println("You have an error on category field");
                }
            }
            if(category==0){
                category=null;
            }
            String ricerca=null;
            String ricercaStrCampo=request.getParameter("ricerca");
            if((ricercaStrCampo!=null)&&(!ricercaStrCampo.equals(""))){
                try{
                    ricerca=ricercaStrCampo;
                }catch(Exception ex){
                    //out.println("You have an error on ricerca field");
                }
            }
            
            String seller=request.getParameter("seller");
            if(seller!=null){
                while(seller.startsWith(" ")){
                    seller=seller.substring(1);
                }
                while(seller.endsWith(" ")){
                    seller=seller.substring(seller.length()-1);
                }
                if(seller.equals("")){
                    seller=null;
                }
            }
            
            ArrayList<Product> products=db.searchProducts(ricerca,category,seller,null);
            request.setAttribute("products", products);
            address= "/contents/user/productsFound.jsp";
            
            
        }catch(Exception ex){
            request.setAttribute("error_message", ex);
        }finally{
                RequestDispatcher dispatcher=request.getRequestDispatcher(address);
                dispatcher.include(request, response);
        }     

    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
